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Unit Converter

Convert between metric and imperial units for all common construction measurements.

Metres (m)metric
⇄
Feet (ft)imperial
Millimetres (mm)metric
⇄
Inches (in)imperial
Kilometres (km)metric
⇄
Miles (mi)imperial
Centimetres (cm)metric
⇄
Yards (yd)imperial
Square Metres (m²)
⇄
Square Feet (ft²)
Square Metres (m²)
⇄
Square Yards (yd²)
Hectares (ha)
⇄
Acres
Square Kilometres (km²)
⇄
Square Miles (mi²)
Cubic Metres (m³)
⇄
Cubic Yards (yd³)
Cubic Metres (m³)
⇄
Cubic Feet (ft³)
Litres (L)
⇄
Gallons (US gal)
Litres (L)
⇄
Imperial Gallons (imp gal)
Kilograms (kg)
⇄
Pounds (lbs)
Tonnes (metric t)
⇄
Short Tons (US ton)
Tonnes (metric t)
⇄
Long Tons (UK ton)
Grams (g)
⇄
Ounces (oz)
Celsius (°C)
⇄
Fahrenheit (°F)

Construction Temperature References

Asphalt paving — minimum air temp+7°C (45°F)
Concrete placement — min+5°C (41°F)
Concrete curing — min+10°C (50°F)
Hot mix asphalt — lay temp130–160°C (265–320°F)
Frost depth concernBelow 0°C (32°F)
Nuclear gauge — operating-10°C to +50°C
Kilopascals (kPa)
⇄
PSI (lb/in²)
Megapascals (MPa)
⇄
PSI (lb/in²)
Bar
⇄
Atmospheres (atm)

About this converter

Covers all the units you'll encounter on a Canadian construction site — metric is standard in Ontario but you'll still run into imperial measurements on older drawings, US equipment specs, and material data sheets. Type in either side and it converts instantly.

Quick reference — common conversions

1 metre = 3.281 feet
1 foot = 0.305 metres
1 m³ = 1.308 yd³
1 yd³ = 0.765 m³
1 tonne = 1.102 short tons
1 kg = 2.205 lbs
1 km = 0.621 miles
1 hectare = 2.471 acres
For reference only. Always verify unit conversions when used in engineering calculations. Terms